ＩＲ

noun

information retrieval; IR

Technical term in computer science and library science. Often used in academic or database contexts.

See also: 情報検索

• このシステムは高こう度どなＩＲ技ぎ術じゅつを使つかっている。

  This system uses advanced IR technology.

noun

investor relations

Business term for corporate communication with investors. Common in financial and corporate settings.

• 来らい月げつ、ＩＲ説せつ明めい会かいを開ひらく予よ定ていです。

  We plan to hold an investor relations briefing next month.

noun

integrated resort

Refers to large-scale leisure complexes including casinos, hotels, and entertainment facilities. Often discussed in the context of Japanese casino legalization.

See also: 統合型リゾート

• 日本にほんでもＩＲの建けん設せつが検けん討とうされている。

  The construction of integrated resorts is also being considered in Japan.

noun

infrared radiation; infrared

Scientific term for electromagnetic radiation with wavelengths longer than visible light. Used in physics, engineering, and everyday technology.

See also: 赤外線

• このカメラはＩＲで暗くら闇やみでも撮さつ影えいできる。

  This camera can shoot in the dark using infrared.

noun

isoprene rubber

Specialized term in chemistry and materials science for a type of synthetic rubber. Rarely encountered outside technical contexts.

See also: イソプレンゴム

• この製せい品ひんにはＩＲが使つかわれている。

  This product uses isoprene rubber.